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Szyk P, Czarczynska-Goslinska B, Mlynarczyk DT, Ślusarska B, Kocki T, Ziegler-Borowska M, Goslinski T. Polymer-Based Nanoparticles as Drug Delivery Systems for Purines of Established Importance in Medicine. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2647. [PMID: 37836288 PMCID: PMC10574807 DOI: 10.3390/nano13192647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Many purine derivatives are active pharmaceutical ingredients of significant importance in the therapy of autoimmune diseases, cancers, and viral infections. In many cases, their medical use is limited due to unfavorable physicochemical and pharmacokinetic properties. These problems can be overcome by the preparation of the prodrugs of purines or by combining these compounds with nanoparticles. Herein, we aim to review the scientific progress and perspectives for polymer-based nanoparticles as drug delivery systems for purines. Polymeric nanoparticles turned out to have the potential to augment antiviral and antiproliferative effects of purine derivatives by specific binding to receptors (ASGR1-liver, macrophage mannose receptor), increase in drug retention (in eye, intestines, and vagina), and permeation (intranasal to brain delivery, PEPT1 transport of acyclovir). The most significant achievements of polymer-based nanoparticles as drug delivery systems for purines were found for tenofovir disoproxil in protection against HIV, for acyclovir against HSV, for 6-mercaptopurine in prolongation of mice ALL model life, as well as for 6-thioguanine for increased efficacy of adoptively transferred T cells. Moreover, nanocarriers were able to diminish the toxic effects of acyclovir, didanosine, cladribine, tenofovir, 6-mercaptopurine, and 6-thioguanine.
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Affiliation(s)
- Piotr Szyk
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
| | - Beata Czarczynska-Goslinska
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
| | - Dariusz T. Mlynarczyk
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
| | - Barbara Ślusarska
- Department of Family and Geriatric Nursing, Faculty of Health Sciences, Medical University of Lublin, 20-081 Lublin, Poland;
| | - Tomasz Kocki
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-081 Lublin, Poland;
| | - Marta Ziegler-Borowska
- Department of Biomedical Chemistry and Polymer Science, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland;
| | - Tomasz Goslinski
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
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Drug-induced pericarditis. COR ET VASA 2022. [DOI: 10.33678/cor.2022.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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3
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Zhang X, Jia X, Tong W, Chen H, Lei N, Li G, Tai J, Li P. Quantification of clofarabine in urine and plasma by LC-MS/MS: suitable for PK study and TDM in pediatric patients with relapsed or refractory ALL. RSC Adv 2022; 12:33091-33098. [PMID: 36425201 PMCID: PMC9672991 DOI: 10.1039/d2ra05843j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/11/2022] [Indexed: 09/08/2024] Open
Abstract
Clofarabine is approved for the treatment of relapsed or refractory acute lymphoblastic leukemia (ALL) in pediatric patients aged 1 to 21 years. Its pharmacokinetic (PK) exposure is strongly related to clinical outcomes and high risk of adverse reactions. PK-guided dosing of nucleoside analogs has the potential to improve survival and reduce toxicity in children. Considering that blood collection is an invasive operation and that the volume of blood collected is usually limited in pediatric ALL patients, a convenient and efficient method for the quantification of clofarabine in human urine and plasma was established with an LC-MS/MS system. Standard curves were shown to be liner in the range of 2.00-1000.00 ng mL-1 in both urine and plasma. Analytical validation of the assay included the assessment of linearity, accuracy (RE: -6.62% to 2.32%), intra-assay precision (RSD: 0.81% to 3.87%) and inter-assay precision (RSD: 1.88% to 5.69%). The absolute recovery rates of clofarabine were 85.50 ± 4.80%, 89.40 ± 0.70% and 98.00 ± 0.40% in urine and were 80.76 ± 1.88%, 86.81 ± 0.75%, 88.10 ± 0.61% in plasma at 5.00, 30.00 and 800.00 ng mL-1, respectively. The selectivity, stability and matrix effects conformed to the biological sample analysis requirements. The cumulative urine excretion rates for 24 hours of the three children with relapsed and refractory acute lymphoblastic leukemia were 72.22%, 87.88%, 82.16%, respectively. The PK data of the pediatric patient numbered lflb13-05 are very inconsistent with that of the other two children subjects, demonstrating that there may be an individual variation in Chinese pediatric patients, so the dose should be individualized based on the monitoring of drug concentration. The method is convenient, sensitive, and accurate, and it is suitable for the determination of clofarabine urine and plasma concentration. This is the first report on the pharmacokinetics of clofarabine in Chinese ALL children. Furthermore, it could be an alternative method to clinical monitoring of clofarabine.
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Affiliation(s)
- Xi Zhang
- Pharmacy Department of Beijing Chaoyang Hospital, Capital Medical University No. 8 Gongti South Road, Chaoyang District Beijing China
| | - Xinbei Jia
- Department of Otorhinolaryngology, Children's Hospital, Capital Institute of Pediatrics No. 2 Yabao Road, Chaoyang District Beijing China
- Chinese Academy of Medical Sciences, Peking Union Medical College No. 30 Shuangqing Road, Haidian District Beijing China
| | - Weihang Tong
- Pharmacy Department of PLA Rocket Force Characteristic Medical Center No. 16 Xinwai Street Xicheng District Beijing China
| | - Hui Chen
- Pharmacy Department of Beijing Chaoyang Hospital, Capital Medical University No. 8 Gongti South Road, Chaoyang District Beijing China
| | - Ning Lei
- Pharmacy Department of PLA Rocket Force Characteristic Medical Center No. 16 Xinwai Street Xicheng District Beijing China
| | - Guangrun Li
- Pharmacy Department of Beijing Chaoyang Hospital, Capital Medical University No. 8 Gongti South Road, Chaoyang District Beijing China
| | - Jun Tai
- Department of Otorhinolaryngology, Children's Hospital, Capital Institute of Pediatrics No. 2 Yabao Road, Chaoyang District Beijing China
| | - Pengfei Li
- Pharmacy Department of Beijing Chaoyang Hospital, Capital Medical University No. 8 Gongti South Road, Chaoyang District Beijing China
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Ali SS, Raj R, Kaur T, Weadick B, Nayak D, No M, Protos J, Odom H, Desai K, Persaud AK, Wang J, Govindarajan R. Solute Carrier Nucleoside Transporters in Hematopoiesis and Hematological Drug Toxicities: A Perspective. Cancers (Basel) 2022; 14:cancers14133113. [PMID: 35804885 PMCID: PMC9264962 DOI: 10.3390/cancers14133113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Anticancer nucleoside analogs are promising treatments that often result in damaging toxicities and therefore ineffective treatment. Mechanisms of this are not well-researched, but cellular nucleoside transport research in mice might provide additional insight given transport’s role in mammalian hematopoiesis. Cellular nucleoside transport is a notable component of mammalian hematopoiesis due to how mutations within it relate to hematological abnormities. This review encompasses nucleoside transporters, focusing on their inherent properties, hematopoietic role, and their interplay in nucleoside drug treatment side effects. We then propose potential mechanisms to explain nucleoside transport involvement in blood disorders. Finally, we point out and advocate for future research areas that would improve therapeutic outcomes for patients taking nucleoside analog therapies. Abstract Anticancer nucleoside analogs produce adverse, and at times, dose-limiting hematological toxicities that can compromise treatment efficacy, yet the mechanisms of such toxicities are poorly understood. Recently, cellular nucleoside transport has been implicated in normal blood cell formation with studies from nucleoside transporter-deficient mice providing additional insights into the regulation of mammalian hematopoiesis. Furthermore, several idiopathic human genetic disorders have revealed nucleoside transport as an important component of mammalian hematopoiesis because mutations in individual nucleoside transporter genes are linked to various hematological abnormalities, including anemia. Here, we review recent developments in nucleoside transporters, including their transport characteristics, their role in the regulation of hematopoiesis, and their potential involvement in the occurrence of adverse hematological side effects due to nucleoside drug treatment. Furthermore, we discuss the putative mechanisms by which aberrant nucleoside transport may contribute to hematological abnormalities and identify the knowledge gaps where future research may positively impact treatment outcomes for patients undergoing various nucleoside analog therapies.
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Affiliation(s)
- Syed Saqib Ali
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Ruchika Raj
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Tejinder Kaur
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Brenna Weadick
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Debasis Nayak
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Minnsung No
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Jane Protos
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Hannah Odom
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Kajal Desai
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Avinash K. Persaud
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
| | - Joanne Wang
- Department of Pharmaceutics, College of Pharmacy, University of Washington, Seattle, WA 98195, USA;
| | - Rajgopal Govindarajan
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (S.S.A.); (R.R.); (T.K.); (B.W.); (D.N.); (M.N.); (J.P.); (H.O.); (K.D.); (A.K.P.)
- Translational Therapeutics, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
- Correspondence: ; Tel.: +1-614-247-8269; Fax: +1-614-292-2588
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Relapsed acute myeloid leukemia in children and adolescents: current treatment options and future strategies. Leukemia 2022; 36:1951-1960. [PMID: 35668109 DOI: 10.1038/s41375-022-01619-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 11/08/2022]
Abstract
Pediatric acute myeloid leukemia (AML) develops from clonal expansion of hematopoietic precursor cells and is characterized by morphologic and cytomolecular heterogeneity. Although the past 40 years have seen significant improvements in overall survival, the prevailing treatment challenges in pediatric AML are the prevention of relapse and the management of relapsed disease. Approximately 25% of children and adolescents with AML suffer disease relapse and face a poor prognosis. Our greater understanding of the genomic, epigenomic, metabolomic, and immunologic pathophysiology of relapsed AML allows for better therapeutic strategies that are being developed for pediatric clinical trials. The development of biologically rational agents is critical as conventional chemotherapeutic salvage regimens are not effective for all patients and pose risk of organ toxicity in heavily pretreated patients. Another major barrier to improvement in outcomes for relapsed pediatric AML is the historic lack of availability and participation in clinical trials. There are ongoing efforts to launch multinational clinical trials of emerging therapies. The purpose of this review is to summarize currently available and newly developed therapies for relapsed pediatric AML.
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Clofarabine with topotecan, vinorelbine, and thiotepa reinduction regimen for children and young adults with relapsed AML. Blood Adv 2022; 6:2688-2694. [PMID: 35008101 PMCID: PMC9043926 DOI: 10.1182/bloodadvances.2021005753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 12/15/2021] [Indexed: 11/20/2022] Open
Abstract
Effective reinduction regimens are needed for children with relapsed and refractory acute myeloid leukemia (AML) as outcomes remain poor. Therapeutic options are limited in this heavily pre-treated patient population, many of whom have reached lifetime recommended doses of anthracycline chemotherapy. The development of effective non-anthracycline based salvage regimens is crucial to these patients who are at significant risk of life-threatening cardiotoxicity. We previously reported results of a phase 2 trial of a clofarabine-based regimen with topotecan, vinorelbine, and thiotepa (TVTC) in patients with relapsed acute leukemias. Here we report on an expanded bicenter cohort of 33 patients, <25 years of age, with relapsed/refractory (R/R) AML treated with up to 2 cycles of the TVTC reinduction regimen from 2007 to 2018. The overall response rate (ORR), defined as complete remission (CR) or CR with partial recovery of platelet count (CRp), was 71.4% (95%CI: 41.9 to 91.6%) for those patients in first relapse (n=14) and 47.4% ( 95%CI: 24.4 to 71.1%) for patients in 2nd or greater relapse or refractory disease. Responses were seen across multiple high risk cytogenetic and molecular subtypes, with 84% of responders successfully bridged to allogeneic stem cell transplantation. The 5-year OS for patients in first relapse was 46.2% (95%CI: 19.1 to 73.3%) and 50.0% (95%CI: 26.9 to 73.1%) for patients who responded to TVTC. For pediatric and young adult patients with R/R AML, TVTC reinduction compares favorably with currently used salvage regimens and warrants further exploration.
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Sedlmayer F, Woischnig AK, Unterreiner V, Fuchs F, Baeschlin D, Khanna N, Fussenegger M. 5-Fluorouracil blocks quorum-sensing of biofilm-embedded methicillin-resistant Staphylococcus aureus in mice. Nucleic Acids Res 2021; 49:e73. [PMID: 33856484 PMCID: PMC8287944 DOI: 10.1093/nar/gkab251] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 03/02/2021] [Accepted: 03/29/2021] [Indexed: 02/05/2023] Open
Abstract
Antibiotic-resistant pathogens often escape antimicrobial treatment by forming protective biofilms in response to quorum-sensing communication via diffusible autoinducers. Biofilm formation by the nosocomial pathogen methicillin-resistant Staphylococcus aureus (MRSA) is triggered by the quorum-sensor autoinducer-2 (AI-2), whose biosynthesis is mediated by methylthioadenosine/S-adenosylhomocysteine nucleosidase (MTAN) and S-ribosylhomocysteine lyase (LuxS). Here, we present a high-throughput screening platform for small-molecular inhibitors of either enzyme. This platform employs a cell-based assay to report non-toxic, bioavailable and cell-penetrating inhibitors of AI-2 production, utilizing engineered human cells programmed to constitutively secrete AI-2 by tapping into the endogenous methylation cycle via ectopic expression of codon-optimized MTAN and LuxS. Screening of a library of over 5000 commercial compounds yielded 66 hits, including the FDA-licensed cytostatic anti-cancer drug 5-fluorouracil (5-FU). Secondary screening and validation studies showed that 5-FU is a potent quorum-quencher, inhibiting AI-2 production and release by MRSA, Staphylococcus epidermidis, Escherichia coli and Vibrio harveyi. 5-FU efficiently reduced adherence and blocked biofilm formation of MRSA in vitro at an order-of-magnitude-lower concentration than that clinically relevant for anti-cancer therapy. Furthermore, 5-FU reestablished antibiotic susceptibility and enabled daptomycin-mediated prevention and clearance of MRSA infection in a mouse model of human implant-associated infection.
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Affiliation(s)
- Ferdinand Sedlmayer
- Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Anne-Kathrin Woischnig
- Laboratory of Infection Biology, Department of Biomedicine, University and University Hospital Basel, Hebelstrasse 20, CH-4031 Basel, Switzerland
| | - Vincent Unterreiner
- Novartis Institutes for BioMedical Research (NIBR), Chemical Biology and Therapeutics (CBT), CH-4033, Basel, Switzerland
| | - Florian Fuchs
- Novartis Institutes for BioMedical Research (NIBR), Chemical Biology and Therapeutics (CBT), CH-4033, Basel, Switzerland
| | - Daniel Baeschlin
- Novartis Institutes for BioMedical Research (NIBR), Chemical Biology and Therapeutics (CBT), CH-4033, Basel, Switzerland
| | - Nina Khanna
- Laboratory of Infection Biology, Department of Biomedicine, University and University Hospital Basel, Hebelstrasse 20, CH-4031 Basel, Switzerland
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Martin Fussenegger
- Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
- Faculty of Science, University of Basel, Mattenstrasse 26, CH-4058 Basel, Switzerland
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8
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Fujita S, Matsuno R, Kawabata N, Sugishita Y, Kaneko R, Koganesawa M, Akiyama K, Toyama D, Yamamoto S. Successful combination chemotherapy involving clofarabine, cyclophosphamide, and etoposide for pediatric relapsed acute myeloid leukemia: A case report. SAGE Open Med Case Rep 2021; 9:2050313X211015511. [PMID: 34035920 PMCID: PMC8127742 DOI: 10.1177/2050313x211015511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 04/16/2021] [Indexed: 11/15/2022] Open
Abstract
Limited salvage chemotherapies are available for relapsed/refractory acute myeloid leukemia. Herein, we described successful reinduction chemotherapy, involving a combination of clofarabine, cyclophosphamide, and etoposide, in a 12-year-old male with relapsed acute myeloid leukemia prior to allogeneic bone marrow transplantation from his father. Although treatment with a combination of fludarabine, cytarabine, granulocyte colony-stimulating factor, idarubicin, and gemtuzumab ozogamicin had no positive effects, the aforementioned clofarabine-based chemotherapy induced complete remission and allowed the transplantation to go ahead. The abovementioned regimen may be useful for induction chemotherapy prior to hematopoietic stem cell transplantation for refractory/relapsed acute myeloid leukemia.
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Affiliation(s)
- Sachio Fujita
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Ryosuke Matsuno
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Naoko Kawabata
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Yumiko Sugishita
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Ryota Kaneko
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Masaya Koganesawa
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Kosuke Akiyama
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Daisuke Toyama
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Shohei Yamamoto
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
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Toporski J, Król L, Dykes J, Håkansson Y, Pronk C, Turkiewicz D. The combination of clofarabine, etoposide, and cyclophosphamide shows limited efficacy as a bridge to transplant for children with refractory acute leukemia: results of a monitored prospective study. Pediatr Hematol Oncol 2021; 38:216-226. [PMID: 33150834 DOI: 10.1080/08880018.2020.1838012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Clofarabine has been shown to effectively induce remission in children with refractory leukemia. We conducted a prospective trial (clinicval.trials.gov NCT01025778) to explore the use of clofarabine-based chemotherapy as a bridge-to-transplant approach. Children with refractory acute leukemia were enrolled to receive two induction courses of clofarabine, etoposide, and cyclophosphamide (CloEC). Responding patients were scheduled for T-cell depleted haploidentical hematopoietic stem cell transplantation (HSCT). The primary objective was to improve survival by achieving sufficient disease control to enable stem cell transplantation. Secondary objectives were to evaluate safety and toxicity. Seven children with active disease entered the study. Two children responded to induction courses and underwent transplantation. Five children did not respond to induction: one died in progression after the first course; two received off-protocol chemotherapy and were transplanted; and two succumbed to progressive leukemia. All transplanted children engrafted and no acute skin graft-versus-host disease > grade I was observed. One child is alive and well 7.5 years after the first CloEC course. One child developed fulminant adenovirus hepatitis and died in continuous complete remission 7 months after start of induction. Two children relapsed and died 6.5 and 7.5 months after enrollment. Infection was the most common toxicity. CloEC can induce responses in some patients with refractory acute leukemia but is highly immunosuppressive, resulting in substantial risk of life-threatening infections. In our study, haploidentical HSCT was feasible with sustained engraftment. No clinically significant organ toxicity was observed. Also, repeating CloEC probably does not increase the chance of achieving remission.
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Affiliation(s)
- Jacek Toporski
- Department of Pediatrics, Section of Pediatric Oncology, Hematology, Immunology and Nephrology, Skåne University Hospital, Lund, Sweden
| | - Ladislav Król
- Department of Pediatrics, Section of Pediatric Oncology, Hematology, Immunology and Nephrology, Skåne University Hospital, Lund, Sweden
| | - Josefina Dykes
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, University and Regional Laboratories, Lund, Sweden
| | - Yvonne Håkansson
- Department of Pediatrics, Section of Pediatric Oncology, Hematology, Immunology and Nephrology, Skåne University Hospital, Lund, Sweden
| | - Cornelis Pronk
- Department of Pediatrics, Section of Pediatric Oncology, Hematology, Immunology and Nephrology, Skåne University Hospital, Lund, Sweden
| | - Dominik Turkiewicz
- Department of Pediatrics, Section of Pediatric Oncology, Hematology, Immunology and Nephrology, Skåne University Hospital, Lund, Sweden
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Kim H. Treatments for children and adolescents with AML. Blood Res 2020; 55:S5-S13. [PMID: 32719170 PMCID: PMC7386885 DOI: 10.5045/br.2020.s002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/30/2020] [Accepted: 02/14/2020] [Indexed: 12/12/2022] Open
Abstract
In recent decades, survival rates for childhood acute myeloid leukemia have remarkably improved, owing to chemotherapy intensification, allogeneic hematopoietic stem cell transplantation, and improved supportive care. Furthermore, treatment protocols have evolved and are currently better matched to prognostic factors and treatment responses. Recently, new molecular prognostic factors were discovered via leukemia genomic studies. Moreover, new tumor subtypes with independent gene expression profiles have been characterized. To broaden the therapeutic options for patients with poor prognoses, therapies that target specific candidate mutations are being identified. Additionally, new drugs are undergoing clinical trials, and immunotherapy is attracting significant interest as a treatment option for recurrent or refractory childhood acute myeloid leukemia.
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Affiliation(s)
- Hyery Kim
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children’s Hospital, Seoul, Korea
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11
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Ribera Santasusana JM, de Andrés Saldaña A, García-Muñoz N, Gostkorzewicz J, Martínez Llinàs D, Díaz de Heredia C. Cost-Effectiveness Analysis of Tisagenlecleucel in the Treatment of Relapsed or Refractory B-Cell Acute Lymphoblastic Leukaemia in Children and Young Adults in Spain. CLINICOECONOMICS AND OUTCOMES RESEARCH 2020; 12:253-264. [PMID: 32523362 PMCID: PMC7237114 DOI: 10.2147/ceor.s241880] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/19/2020] [Indexed: 11/30/2022] Open
Abstract
Purpose Tisagenlecleucel, a chimeric antigen receptor T-cell (CAR-T) therapy, is a promising alternative for the management of children and young adults with relapsed and refractory B-cell acute lymphoblastic leukemia (r/r ALL). The aim of this study was to determine whether treatment with tisagenlecleucel is a cost-effective intervention compared with salvage chemotherapy in paediatric and young adult patients with r/r ALL in Spain. Materials and Methods A partitioned survival model of monthly cycles with three health states was used (event-free survival, progressive/relapsed disease and death). A lifetime time horizon and the Spanish National Health System perspective were adopted. During the first 5 years, permanence in the different health states was determined according to the results in the clinical studies. In successive years, mortality tables of the Spanish general population adjusted by standardized mortality rate for survivors of childhood cancer were used. Clinical, economic, and quality of life parameters were drawn from clinical trials and the literature. Only direct health costs (pharmacological costs and the costs derived from health resource use) were included. The robustness of the results was evaluated in a sensitivity analysis. Results This cost-effectiveness analysis showed a greater benefit (10.10 and 8.97 life-years gained [LYGs] and quality-adjusted life-years [QALYs] gained, respectively) and a higher cost (€ 258,378.40) for tisagenlecleucel compared to salvage chemotherapy. The resulting incremental cost-effectiveness and cost-utility ratios were € 25,576.80 per LYG and € 28,818.52 per QALY gained, respectively. In the sensitivity analysis, all the results were below € 50,000/QALY. Conclusion Tisagenlecleucel would represent a cost-effective intervention for the treatment of children and young adults with r/r ALL in Spain.
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Affiliation(s)
| | | | | | - Joana Gostkorzewicz
- Health Economics and Outcomes Research, Novartis Farmacéutica S.A., Madrid, Spain
| | | | - Cristina Díaz de Heredia
- Paediatric Oncology and Hematology Department - Hematopoietic Stem Cell Transplantation, Hospital Universitari Vall d'Hebron, Barcelona, Spain
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12
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Kamphuis JAM, Linschoten M, Cramer MJ, Gort EH, van Rhenen A, Asselbergs FW, Doevendans PA, Teske AJ. Cancer Therapy-Related Cardiac Dysfunction of Nonanthracycline Chemotherapeutics: What Is the Evidence? JACC: CARDIOONCOLOGY 2019; 1:280-290. [PMID: 34396190 PMCID: PMC8352330 DOI: 10.1016/j.jaccao.2019.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/26/2019] [Accepted: 09/04/2019] [Indexed: 11/07/2022]
Abstract
Cancer therapy–related cardiac dysfunction (CTRCD) is one of the most concerning cardiovascular side effects of cancer treatment. Important reviews within the field of cardio-oncology have described various agents to be associated with a high risk of CTRCD, including mitomycin C, ifosfamide, vincristine, cyclophosphamide, and clofarabine. The aim of this study was to provide insight into the data on which these incidence rates are based. We observed that the reported cardiotoxicity of mitomycin C and ifosfamide is based on studies in which most patients received anthracyclines, complicating the interpretation of their association with CTRCD. The high incidence of vincristine-induced cardiotoxicity is based on an incorrect interpretation of a single study. Incidence rates of clofarabine remain uncertain due to a lack of cardiac screening in clinical trials. The administration of high-dose cyclophosphamide (>1.5 g/m2/day) is associated with a high incidence of CTRCD. Based on our findings, a critical re-evaluation of the cardiotoxicity of these agents is warranted. CTRCD is one of the most concerning cardiovascular side effects of anticancer treatment. Mitomycin C, ifosfamide, cyclophosphamide, clofarabine, and vincristine are frequently recognized as being highly cardiotoxic, causing CTRCD in ≥10% of patients. This primer provides insight into the data upon which the CTRCD incidence rates of these agents have been based. A critical re-evaluation of CTRCD rates is necessary because these numbers have been based on data in which most patients received prior or concurrent treatment with other cardiotoxic drugs, including anthracyclines. Systematic reviews, meta-analyses, consistent and detailed reporting of cardiovascular toxicity, and international registries are of pivotal importance to establish the cardiotoxicity profile of these chemotherapeutics.
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Affiliation(s)
- Janine A M Kamphuis
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands
| | - Marijke Linschoten
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands
| | - Maarten J Cramer
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands
| | - Eelke H Gort
- Department of Medical Oncology, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands
| | - Anna van Rhenen
- Department of Haematology, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands
| | - Folkert W Asselbergs
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands.,Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, United Kingdom.,Health Data Research UK and Institute of Health Informatics, University College London, London, United Kingdom
| | - Pieter A Doevendans
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands.,Netherlands Heart Institute, Utrecht, the Netherlands
| | - Arco J Teske
- Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, the Netherlands
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13
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Rubnitz JE, Lacayo NJ, Inaba H, Heym K, Ribeiro RC, Taub J, McNeer J, Degar B, Schiff D, Yeoh AEJ, Coustan-Smith E, Wang L, Triplett B, Raimondi SC, Klco J, Choi J, Pounds S, Pui CH. Clofarabine Can Replace Anthracyclines and Etoposide in Remission Induction Therapy for Childhood Acute Myeloid Leukemia: The AML08 Multicenter, Randomized Phase III Trial. J Clin Oncol 2019; 37:2072-2081. [PMID: 31246522 DOI: 10.1200/jco.19.00327] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
PURPOSE To identify effective and less toxic therapy for children with acute myeloid leukemia, we introduced clofarabine into the first course of remission induction to reduce exposure to daunorubicin and etoposide. PATIENTS AND METHODS From 2008 through 2017, 285 patients were enrolled at eight centers; 262 were randomly assigned to receive clofarabine and cytarabine (Clo+AraC, n = 129) or high-dose cytarabine, daunorubicin, and etoposide (HD-ADE, n = 133) as induction I. Induction II consisted of low-dose ADE given alone or combined with sorafenib or vorinostat. Consolidation therapy comprised two or three additional courses of chemotherapy or hematopoietic cell transplantation. Genetic abnormalities and the level of minimal residual disease (MRD) at day 22 of initial remission induction determined final risk classification. The primary end point was MRD at day 22. RESULTS Complete remission was induced after two courses of therapy in 263 (92.3%) of the 285 patients; induction failures included four early deaths and 15 cases of resistant leukemia. Day 22 MRD was positive in 57 of 121 randomly assigned evaluable patients (47%) who received Clo+AraC and 42 of 121 patients (35%) who received HD-ADE (odds ratio, 1.86; 95% CI, 1.03 to 3.41; P = .04). Despite this result, the 3-year event-free survival rate (52.9% [44.6% to 62.8%] for Clo+AraC v 52.4% [44.0% to 62.4%] for HD-ADE, P = .94) and overall survival rate (74.8% [67.1% to 83.3%] for Clo+AraC v 64.6% [56.2% to 74.2%] for HD-ADE, P = .1) did not differ significantly across the two arms. CONCLUSION Our findings suggest that the use of clofarabine with cytarabine during remission induction might reduce the need for anthracycline and etoposide in pediatric patients with acute myeloid leukemia and may reduce rates of cardiomyopathy and treatment-related cancer.
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Affiliation(s)
- Jeffrey E Rubnitz
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - Norman J Lacayo
- 2Lucile Packard Children's Hospital and Stanford Cancer Center, Palo Alto, CA
| | - Hiroto Inaba
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | | | - Raul C Ribeiro
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | | | | | | | | | | | | | - Lei Wang
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - Brandon Triplett
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - Susana C Raimondi
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - Jeffery Klco
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - John Choi
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - Stanley Pounds
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
| | - Ching-Hon Pui
- 1St Jude Children's Research Hospital and the University of Tennessee Health Science Center, College of Medicine, Memphis, TN
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14
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Hochberg J, Zahler S, Geyer MB, Chen N, Krajewski J, Harrison L, Militano O, Ozkaynak MF, Cheerva AC, Talano J, Moore TB, Gillio AP, Walters MC, Baxter-Lowe LA, Hamby C, Cairo MS. The safety and efficacy of clofarabine in combination with high-dose cytarabine and total body irradiation myeloablative conditioning and allogeneic stem cell transplantation in children, adolescents, and young adults (CAYA) with poor-risk acute leukemia. Bone Marrow Transplant 2018; 54:226-235. [PMID: 29899571 DOI: 10.1038/s41409-018-0247-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/16/2018] [Accepted: 05/19/2018] [Indexed: 01/19/2023]
Abstract
Acute leukemias in children with CR3, refractory relapse, or induction failure (IF) have a poor prognosis. Clofarabine has single agent activity in relapsed leukemia and synergy with cytarabine. We sought to determine the safety and overall survival in a Phase I/II trial of conditioning with clofarabine (doses 40 - 52 mg/m2), cytarabine 1000 mg/m2, and 1200 cGy TBI followed by alloSCT in children, adolescents, and young adults with poor-risk leukemia. Thirty-seven patients; Age 12 years (1-22 years); ALL/AML: 34:3 (18 IF, 10 CR3, 13 refractory relapse); 15 related, 22 unrelated donors. Probabilities of neutrophil, platelet engraftment, acute GvHD, and chronic GvHD were 94%, 84%, 49%, and 30%, respectively. Probability of day 100 TRM was 8.1%. 2-year EFS (event free survival) and OS (overall survival) were 38.6% (CI95: 23-54%), and 41.3% (CI95: 25-57%). Multivariate analysis demonstrated overt disease at time of transplant (relative risk (RR) 3.65, CI95: 1.35-9.89, P = 0.011) and umbilical cord blood source (RR 2.17, CI95: 1.33-4.15, P = 0.019) to be predictors of worse EFS/OS. This novel myeloablative conditioning regimen followed by alloSCT is safe and well tolerated in CAYA with very poor-risk ALL or AML. Further investigation in CAYA with better risk ALL and AML undergoing alloSCT is warranted.
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Affiliation(s)
| | - Stacey Zahler
- Pediatric Institute, Cleveland Clinic Children's, Cleveland, Ohio, USA
| | - Mark B Geyer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nan Chen
- Departments of Pediatrics, Valhalla, NY, USA
| | - Jennifer Krajewski
- Department of Pediatrics, Hackensack University Medical Center, Hackensack, NJ, USA
| | | | | | | | | | - Julie Talano
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Theodore B Moore
- Department of Pediatrics, University of California at Los Angeles, Los Angeles, CA, USA
| | - Alfred P Gillio
- Department of Pediatrics, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Mark C Walters
- Department of Hematology/Oncology, Children's Hospital and Research Center of Oakland, Oakland, CA, USA
| | - Lee Ann Baxter-Lowe
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Carl Hamby
- Departments of Microbiology and Immunology, Valhalla, NY, USA
| | - Mitchell S Cairo
- Departments of Pediatrics, Valhalla, NY, USA. .,Departments of Microbiology and Immunology, Valhalla, NY, USA. .,Departments of Medicine, Valhalla, NY, USA. .,Departments of Pathology, Valhalla, NY, USA. .,Departments of Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA.
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15
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van Eijkelenburg NKA, Rasche M, Ghazaly E, Dworzak MN, Klingebiel T, Rossig C, Leverger G, Stary J, De Bont ESJM, Chitu DA, Bertrand Y, Brethon B, Strahm B, van der Sluis IM, Kaspers GJL, Reinhardt D, Zwaan CM. Clofarabine, high-dose cytarabine and liposomal daunorubicin in pediatric relapsed/refractory acute myeloid leukemia: a phase IB study. Haematologica 2018; 103:1484-1492. [PMID: 29773602 PMCID: PMC6119144 DOI: 10.3324/haematol.2017.187153] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 05/16/2018] [Indexed: 12/29/2022] Open
Abstract
Survival in children with relapsed/refractory acute myeloid leukemia is unsatisfactory. Treatment consists of one course of fludarabine, cytarabine and liposomal daunorubicin, followed by fludarabine and cytarabine and stem-cell transplantation. Study ITCC 020/I-BFM 2009-02 aimed to identify the recommended phase II dose of clofarabine replacing fludarabine in the abovementioned combination regimen (3+3 design). Escalating dose levels of clofarabine (20-40 mg/m2/day × 5 days) and liposomal daunorubicin (40-80 mg/m2/day) were administered with cytarabine (2 g/m2/day × 5 days). Liposomal DNR was given on day 1, 3 and 5 only. The cohort at the recommended phase II dose was expanded to make a preliminary assessment of anti-leukemic activity. Thirty-four children were enrolled: refractory 1st (n=11), early 1st (n=15), ≥2nd relapse (n=8). Dose level 3 (30 mg/m2clofarabine; 60 mg/m2liposomal daunorubicin) appeared to be safe only in patients without subclinical fungal infections. Infectious complications were dose-limiting. The recommended phase II dose was 40 mg/m2 clofarabine with 60 mg/m2 liposomal daunorubicin. Side-effects mainly consisted of infections. The overall response rate was 68% in 31 response evaluable patients, and 80% at the recommended phase II dose (n=10); 22 patients proceeded to stem cell transplantation. The 2-year probability of event-free survival (pEFS) was 26.5±7.6 and probability of survival (pOS) 32.4±8.0%. In the 21 responding patients, the 2-year pEFS was 42.9±10.8 and pOS 47.6±10.9%. Clofarabine exposure in plasma was not significantly different from that in single-agent studies. In conclusion, clofarabine was well tolerated and showed high response rates in relapsed/refractory pediatric acute myeloid leukemia. Patients with (sub) clinical fungal infections should be treated with caution. Clofarabine has been taken forward in the Berlin-Frankfurt-Münster study for newly diagnosed acute myeloid leukemia. The Study ITCC-020 was registered as EUDRA-CT 2009-009457-13; Dutch Trial Registry number 1880.
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Affiliation(s)
- Natasha K A van Eijkelenburg
- Department of Pediatric Oncology/Hematology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands.,Department of Pediatric Oncology, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.,European Consortium for Innovative Therapies for Children with Cancer (ITCC), Villejuif, France
| | - Mareike Rasche
- Department of Pediatric Oncology, University Children's Hospital, Essen, Germany
| | - Essam Ghazaly
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, UK
| | - Michael N Dworzak
- Children's Cancer Research Institute and St. Anna Children's Hospital, Department of Pediatrics, Medical University of Vienna, Austria
| | - Thomas Klingebiel
- Pediatric Hematology/Oncology, Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Claudia Rossig
- Pediatric Hematology and Oncology, University Children's Hospital, Münster, Germany
| | - Guy Leverger
- Department of Pediatric Hematology and Oncology, AP-HP, GH HUEP, Trousseau Hospital, Paris, France
| | - Jan Stary
- Department of Pediatric Hematology and Oncology, 2Faculty of Medicine, Charles University Prague, University Hospital Motol, Czech Republic
| | - Eveline S J M De Bont
- Department of Pediatric Oncology, University Medical Center Groningen, University of Groningen, the Netherlands
| | - Dana A Chitu
- Clinical Trial Center, Department of Hematology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Yves Bertrand
- Pediatric Hematology Department, IHOP and Claude Bernard University, Lyon, France
| | - Benoit Brethon
- Department of Pediatric Hematology, Robert Debré Hospital, Paris, France
| | - Brigitte Strahm
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, University of Freiburg, Germany
| | - Inge M van der Sluis
- Department of Pediatric Oncology/Hematology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands.,European Consortium for Innovative Therapies for Children with Cancer (ITCC), Villejuif, France
| | - Gertjan J L Kaspers
- Department of Pediatric Oncology, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.,Department of Pediatric Oncology, VU University Medical Center, Amsterdam, the Netherlands.,I-BFM-AML committee, Kiel, Germany
| | - Dirk Reinhardt
- European Consortium for Innovative Therapies for Children with Cancer (ITCC), Villejuif, France.,I-BFM-AML committee, Kiel, Germany
| | - C Michel Zwaan
- Department of Pediatric Oncology/Hematology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands .,Department of Pediatric Oncology, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.,European Consortium for Innovative Therapies for Children with Cancer (ITCC), Villejuif, France
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16
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Clofarabine Dosing in a Patient With Acute Myeloid Leukemia on Intermittent Hemodialysis: Case Report and Review of the Literature. J Pediatr Hematol Oncol 2017; 39:481-484. [PMID: 28538504 DOI: 10.1097/mph.0000000000000845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Clofarabine containing chemotherapeutic regimens have demonstrated efficacy in the treatment of relapsed refractory acute myeloid leukemia. Nonetheless, there are limited data on the use of clofarabine in patients with renal failure. The present report describes the use of clofarabine in a patient with renal failure undergoing intermittent dialysis. We describe our rationale for dosing, clofarabine plasma levels obtained, and discuss our findings in the context of other available literature. Consistent with previous findings, intermittent hemodialysis was not found to be a reliable method of removing clofarabine in patients with renal insufficiency.
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17
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Mannargudi MB, Deb S. Clinical pharmacology and clinical trials of ribonucleotide reductase inhibitors: is it a viable cancer therapy? J Cancer Res Clin Oncol 2017. [PMID: 28624910 DOI: 10.1007/s00432-017-2457-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE Ribonucleotide reductase (RR) enzymes (RR1 and RR2) play an important role in the reduction of ribonucleotides to deoxyribonucleotides which is involved in DNA replication and repair. Augmented RR activity has been ascribed to uncontrolled cell growth and tumorigenic transformation. METHODS This review mainly focuses on several biological and chemical RR inhibitors (e.g., siRNA, GTI-2040, GTI-2501, triapine, gemcitabine, and clofarabine) that have been evaluated in clinical trials with promising anticancer activity from 1960's till 2016. A summary on whether their monotherapy or combination is still effective for further use is discussed. RESULTS Among the RR2 inhibitors evaluated, GTI-2040, siRNA, gallium nitrate and didox were more efficacious as a monotherapy, whereas triapine was found to be more efficacious as combination agent. Hydroxyurea is currently used more in combination therapy, even though it is efficacious as a monotherapy. Gallium nitrate showed mixed results in combination therapy, while the combination activity of didox is yet to be evaluated. RR1 inhibitors that have long been used in chemotherapy such as gemcitabine, cladribine, fludarabine and clofarabine are currently used mostly as a combination therapy, but are equally efficacious as a monotherapy, except tezacitabine which did not progress beyond phase I trials. CONCLUSIONS Based on the results of clinical trials, we conclude that RR inhibitors are viable treatment options, either as a monotherapy or as a combination in cancer chemotherapy. With the recent advances made in cancer biology, further development of RR inhibitors with improved efficacy and reduced toxicity is possible for treatment of variety of cancers.
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Affiliation(s)
- Mukundan Baskar Mannargudi
- Clinical Pharmacology Program, Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Subrata Deb
- Department of Biopharmaceutical Sciences, Roosevelt University College of Pharmacy, 1400 N. Roosevelt Blvd., Schaumburg, IL, 60173, USA.
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18
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Büttner B, Knoth H, Kramer M, Oertel R, Seeling A, Sockel K, von Bonin M, Stölzel F, Alakel N, Platzbecker U, Röllig C, Ehninger G, Bornhäuser M, Schetelig J, Middeke JM. Impact of pharmacokinetics on the toxicity and efficacy of clofarabine in patients with relapsed or refractory acute myeloid leukemia. Leuk Lymphoma 2017; 58:2865-2874. [PMID: 28509593 DOI: 10.1080/10428194.2017.1319051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Common side effects of clofarabine (CFB) are liver toxicity, particularly a transient elevation of transaminases and skin toxicity. We studied the correlation of pharmacokinetic (PK) parameters with these toxicities and the efficacy of CFB in patients with relapsed or refractory acute myeloid leukemia. Clofarabine PK parameters showed large inter-individual variability. A higher CFB area under the curve was significantly associated with higher transaminase levels (p = .011 for aspartate aminotransferase (AST), adjusted for age, sex, cumulated CFB dosage, baseline AST, and glomerular filtration rate (GFR)). No significant association could be found between maximum concentration and the liver toxicity parameters. The occurrence of skin toxicity and the response to re-induction chemotherapy evaluated at day 15 were also not associated with PK. In conclusion, a higher individual CFB exposure is associated with increased liver toxicity reflected by elevated liver enzymes, without having an impact on anti-leukemic efficacy.
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Affiliation(s)
- Bozena Büttner
- a Klinikapotheke, Universitätsklinikum Carl Gustav Carus der TU Dresden , Dresden , Germany
| | - Holger Knoth
- a Klinikapotheke, Universitätsklinikum Carl Gustav Carus der TU Dresden , Dresden , Germany
| | - Michael Kramer
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Reinhard Oertel
- c Institut für Klinische Pharmakologie, Medizinische Fakultät Carl Gustav Carus der TU , Dresden , Germany
| | - Andreas Seeling
- d Institut für Pharmazie, Friedrich-Schiller-Universität Jena , Jena , Germany
| | - Katja Sockel
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Malte von Bonin
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany.,e German Cancer Consortium (DKTK) , Heidelberg , Germany.,f Consortium for Translational Cancer Research, German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Friedrich Stölzel
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Nael Alakel
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Uwe Platzbecker
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Christoph Röllig
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Gerhard Ehninger
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
| | - Martin Bornhäuser
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany.,f Consortium for Translational Cancer Research, German Cancer Research Center (DKFZ) , Heidelberg , Germany.,g National Center for Tumor Diseases (NCT) , Heidelberg , Germany
| | - Johannes Schetelig
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany.,h DKMS, German Bone Marrow Donor Center , Tübingen , Germany
| | - Jan Moritz Middeke
- b Universitätsklinikum Carl Gustav Carus der TU Dresden , Medizinische Klinik und Poliklinik I , Dresden , Germany
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19
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Takagi M, Ishiwata Y, Aoki Y, Miyamoto S, Hoshino A, Matsumoto K, Nishimura A, Tanaka M, Yanagimachi M, Mitsuiki N, Imai K, Kanegane H, Kajiwara M, Takikawa K, Mae T, Tomita O, Fujimura J, Yasuhara M, Tomizawa D, Mizutani S, Morio T. HLA haploidentical hematopoietic cell transplantation using clofarabine and busulfan for refractory pediatric hematological malignancy. Int J Hematol 2017; 105:686-691. [PMID: 28185203 DOI: 10.1007/s12185-017-2187-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/31/2017] [Accepted: 01/31/2017] [Indexed: 11/30/2022]
Abstract
Haploidentical hematopoietic cell transplantation (HCT) conditioning with clofarabine and target area under the blood concentration-time curve (AUC)-based busulfan adjustment was performed in three patients with refractory pediatric leukemia. The target AUC for two patients who had already received multiple transplantations was 3600 and 4000 μmol min/L, and that for the patient with Down's syndrome was 3000 μmol min/L. Regimen-related toxicity was well tolerated in all cases. All three maintained cytological remission throughout the follow-up period (between 31 and 167 weeks). Thus, haploidentical HCT conditioning with clofarabine and target AUC-based busulfan adjustment may be a preferable option for children with recurrent or refractory pediatric leukemia.
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Affiliation(s)
- Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan.
| | - Yasuyoshi Ishiwata
- Department of Hospital Pharmacy, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bunkyo-ku, Tokyo, Japan
| | - Yuki Aoki
- Department of Pediatric Oncology, National Cancer Research Center, Tsukiji 5-1-1, Chuo-ku, Tokyo, Japan
| | - Satoshi Miyamoto
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Akihiro Hoshino
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Kazuaki Matsumoto
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Akira Nishimura
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Mari Tanaka
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Masakatsu Yanagimachi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Noriko Mitsuiki
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Kohsuke Imai
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Hirokazu Kanegane
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Michiko Kajiwara
- Department of Transfusion Medicine, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bunkyo-ku, Tokyo, Japan
| | - Kanako Takikawa
- Department of Hospital Pharmacy, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bunkyo-ku, Tokyo, Japan
| | - Tsukasa Mae
- Department of Hospital Pharmacy, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bunkyo-ku, Tokyo, Japan
| | - Osamu Tomita
- Department of Pediatrics and Adolescent Medicine, Juntendo University, School of Medicine, Yushima 2-1-1, Bunkyo-ku, Tokyo, Japan
| | - Junya Fujimura
- Department of Pediatrics and Adolescent Medicine, Juntendo University, School of Medicine, Yushima 2-1-1, Bunkyo-ku, Tokyo, Japan
| | - Masato Yasuhara
- Department of Pharmacokinetics and Pharmacodynamics, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bunkyo-ku, Tokyo, Japan
| | - Daisuke Tomizawa
- Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Okura 2-10-1, Setagaya-ku, Tokyo, Japan
| | - Shuki Mizutani
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bukyo-ku, Tokyo, 113-8510, Japan
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Alexander TB, Lacayo NJ, Choi JK, Ribeiro RC, Pui CH, Rubnitz JE. Phase I Study of Selinexor, a Selective Inhibitor of Nuclear Export, in Combination With Fludarabine and Cytarabine, in Pediatric Relapsed or Refractory Acute Leukemia. J Clin Oncol 2016; 34:4094-4101. [PMID: 27507877 DOI: 10.1200/jco.2016.67.5066] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Purpose To characterize the toxicity, pharmacokinetics, and pharmacodynamics of selinexor, a selective inhibitor of nuclear export, when combined with fludarabine and cytarabine, in children with relapsed or refractory leukemia. Patients and Methods Eighteen patients with relapsed or refractory acute leukemia were enrolled in the SELHEM (Selinexor With Fludarabine and Cytarabine for Treatment of Refractory or Relapsed Leukemia or Myelodysplastic Syndrome) clinical trial (NCT02212561). Selinexor, initially at 30 mg/m2 per dose, was given orally on days 1, 3, 8, 10, 22, and 24 and was escalated according to a rolling-six design. Fludarabine 30 mg/m2 and cytarabine 2 g/m2 were administered on days 15 to 19. Pharmacokinetic and pharmacodynamic studies were performed on days 1 and 22. Response evaluations were performed on day 15 and at the completion of course 1. Results Among the 17 patients who were evaluable for toxicity, three were treated at 30 mg/m2, three at 40 mg/m2, six at 55 mg/m2, and five at 70 mg/m2. The most common grade 3 nonhematologic toxicity was asymptomatic hyponatremia. Two patients who were treated at 70 mg/m2 experienced reversible cerebellar toxicity, thereby defining the dose-limiting toxicity. Pharmacokinetic parameters demonstrated that plasma exposure was dose proportional. Fifteen of 16 patients demonstrated at least a twofold increase of XPO1 mRNA, indicating inhibition of the XPO1 protein. In this group of heavily pretreated, relapsed, and refractory patients, seven of 15 evaluable patients (47%) achieved complete response or complete response with incomplete count recovery. Conclusion Selinexor, in combination with fludarabine and cytarabine, is tolerable at doses up to 55 mg/m2 in pediatric patients with relapsed or refractory leukemia. All patients who received selinexor at ≥ 40 mg/m2 demonstrated XPO1 target inhibition. Response rates are promising and will be further explored in a phase II trial.
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Affiliation(s)
- Thomas B Alexander
- Thomas B. Alexander, John K. Choi, Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, St Jude Children's Research Hospital; Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, University of Tennessee College of Medicine, Memphis, TN; and Norman J. Lacayo, Lucile Packard Children's Hospital Stanford, Stanford, CA
| | - Norman J Lacayo
- Thomas B. Alexander, John K. Choi, Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, St Jude Children's Research Hospital; Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, University of Tennessee College of Medicine, Memphis, TN; and Norman J. Lacayo, Lucile Packard Children's Hospital Stanford, Stanford, CA
| | - John K Choi
- Thomas B. Alexander, John K. Choi, Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, St Jude Children's Research Hospital; Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, University of Tennessee College of Medicine, Memphis, TN; and Norman J. Lacayo, Lucile Packard Children's Hospital Stanford, Stanford, CA
| | - Raul C Ribeiro
- Thomas B. Alexander, John K. Choi, Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, St Jude Children's Research Hospital; Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, University of Tennessee College of Medicine, Memphis, TN; and Norman J. Lacayo, Lucile Packard Children's Hospital Stanford, Stanford, CA
| | - Ching-Hon Pui
- Thomas B. Alexander, John K. Choi, Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, St Jude Children's Research Hospital; Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, University of Tennessee College of Medicine, Memphis, TN; and Norman J. Lacayo, Lucile Packard Children's Hospital Stanford, Stanford, CA
| | - Jeffrey E Rubnitz
- Thomas B. Alexander, John K. Choi, Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, St Jude Children's Research Hospital; Raul C. Ribeiro, Ching-Hon Pui, and Jeffrey E. Rubnitz, University of Tennessee College of Medicine, Memphis, TN; and Norman J. Lacayo, Lucile Packard Children's Hospital Stanford, Stanford, CA
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Grain A, Sirvent A, Strullu M, Françoise M, Mohty M, Guillaume T, Chevallier P, Rialland F. Sustained responses after clofarabine-based sequential allogeneic stem cell transplantation in children with high-risk, relapse and/or refractory acute myeloid leukemia or juvenile myelomonocytic leukemia: a study on behalf of the French society of bone marrow transplantation or cell therapy (SFGM-TC). Leuk Lymphoma 2016; 57:2937-2941. [PMID: 27184944 DOI: 10.1080/10428194.2016.1177721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Audrey Grain
- a Department of Paediatric Haematology , CHU de Nantes , Nantes , France
| | - Anne Sirvent
- b Department of Paediatric Haematology , CHU de Montpellier , Montpellier , France
| | - Marion Strullu
- a Department of Paediatric Haematology , CHU de Nantes , Nantes , France
| | | | - Mohamad Mohty
- d Hematology Department , Saint Louis Hospital, APHP , Paris , France
| | | | | | - Fanny Rialland
- a Department of Paediatric Haematology , CHU de Nantes , Nantes , France
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22
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Fathi AT, DeAngelo DJ, Stevenson KE, Kolitz JE, Asch JD, Amrein PC, Attar EC, Steensma DP, Wadleigh M, Foster J, Connolly C, Galinsky I, Devoe CE, Stone RM, Neuberg DS, Ballen KK. Phase 2 study of intensified chemotherapy and allogeneic hematopoietic stem cell transplantation for older patients with acute lymphoblastic leukemia. Cancer 2016; 122:2379-88. [DOI: 10.1002/cncr.30037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/03/2016] [Accepted: 03/16/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Amir T. Fathi
- Massachusetts General Hospital Cancer Center; Boston Massachusetts
| | | | | | - Jonathan E. Kolitz
- Monter Cancer Center; North Shore-Long Island Jewish Health System; Lake Success New York
| | | | - Philip C. Amrein
- Massachusetts General Hospital Cancer Center; Boston Massachusetts
| | - Eyal C. Attar
- Massachusetts General Hospital Cancer Center; Boston Massachusetts
| | | | | | - Julia Foster
- Massachusetts General Hospital Cancer Center; Boston Massachusetts
| | | | | | - Craig E. Devoe
- Monter Cancer Center; North Shore-Long Island Jewish Health System; Lake Success New York
| | | | | | - Karen K. Ballen
- Massachusetts General Hospital Cancer Center; Boston Massachusetts
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23
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Taga T, Tomizawa D, Takahashi H, Adachi S. Acute myeloid leukemia in children: Current status and future directions. Pediatr Int 2016; 58:71-80. [PMID: 26645706 DOI: 10.1111/ped.12865] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 10/05/2015] [Accepted: 10/22/2015] [Indexed: 01/17/2023]
Abstract
Acute myeloid leukemia (AML) accounts for 25% of pediatric leukemia and affects approximately 180 patients annually in Japan. The treatment outcome for pediatric AML has improved through advances in chemotherapy, hematopoietic stem cell transplantation (HSCT), supportive care, and optimal risk stratification. Currently, clinical pediatric AML studies are conducted separately according to the AML subtypes: de novo AML, acute promyelocytic leukemia (APL), and myeloid leukemia with Down syndrome (ML-DS). Children with de novo AML are treated mainly with anthracyclines and cytarabine, in some cases with HSCT, and the overall survival (OS) rate now approaches 70%. Children with APL are treated with an all-trans retinoic acid (ATRA)-combined regimen with an 80-90% OS. Children with ML-DS are treated with a less intensive regimen compared with non-DS patients, and the OS is approximately 80%. HSCT in first remission is restricted to children with high-risk de novo AML only. To further improve outcomes, it will be necessary to combine more accurate risk stratification strategies using molecular genetic analysis with assessment of minimum residual disease, and the introduction of new drugs in international collaborative clinical trials.
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Affiliation(s)
- Takashi Taga
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Japan
| | - Daisuke Tomizawa
- Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
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DeAngelo DJ, Stein EM, Ravandi F. Evolving Therapies in Acute Myeloid Leukemia: Progress at Last? Am Soc Clin Oncol Educ Book 2016; 35:e302-e312. [PMID: 27249736 DOI: 10.1200/edbk_161258] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Acute myeloid leukemia (AML) is an acquired disease characterized by chromosomal translocations and somatic mutations that lead to leukemogenesis. Systemic combination chemotherapy with an anthracycline and cytarabine remains the standard induction regimen for "fit" adults. Patients who achieve complete remission generally receive postinduction therapy with cytarabine-based chemotherapy or an allogeneic bone marrow transplant. Those unfit for induction chemotherapy are treated with hypomethylating agents (HMAs), low-dose cytarabine, or they are offered supportive care alone with transfusions and prophylactic antimicrobials. The revolution in understanding the genetics of AML, facilitated by next-generation sequencing, has led to many new drugs against driver mutations. Better methods of identification of leukemic blasts have provided us with better means to detect the disease left behind after cytotoxic chemotherapy regimens. This measurable residual disease has been correlated with poorer relapse-free survival, demonstrating the need for novel strategies to eradicate it to improve the outcome of patients with acute leukemias. In this article, we discuss adapting and improving AML therapy by age and comorbidities, emerging targeted therapies in AML, and minimal residual disease (MRD) assessment in AML.
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Affiliation(s)
- Daniel J DeAngelo
- From the Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Eytan M Stein
- From the Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Farhad Ravandi
- From the Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY; The University of Texas MD Anderson Cancer Center, Houston, TX
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Abstract
PURPOSE OF REVIEW To describe the current management of de-novo pediatric acute myeloid leukemia (AML), excluding promyelocytic leukemia and myeloid neoplasms of patients with constitutional trisomy 21. The biology of pediatric AML, which differs from that of its adult counterpart, is briefly discussed. RECENT FINDINGS Although survival of childhood AML has improved substantially over the past 40 years, progress has reached a plateau. Pediatric AML comprises several subtypes with diverse prognosis. Currently, about 35% of patients die of the disease, and survivors have many debilitating late effects. Clinical trials reported over the past 5 years have revealed several therapeutic concepts. First, initial intensive myelosuppressive chemotherapy is necessary to sufficiently reduce minimal residual disease and is associated with improved disease-free survival. Second, postremission chemotherapy with or without hematopoietic stem cell transplantation is necessary to eradicate AML. Third, central nervous system leukemia can be adequately managed with intrathecal chemotherapy and rarely requires radiotherapy. Finally, small differences in survival among clinical trials are explained by patient selection and quality of supportive care. SUMMARY The most crucial steps for progress are greater understanding of the biology of pediatric AML and introduction of new agents targeting specific AML subtypes and age-specific factors.
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Abstract
"Langerhans cell histiocytosis" (LCH) describes a spectrum of clinical presentations ranging from a single bone lesion or trivial skin rash to an explosive disseminated disease. Regardless of clinical severity, LCH lesions share the common histology of CD1a(+)/CD207(+) dendritic cells with characteristic morphology among an inflammatory infiltrate. Despite historical uncertainty defining LCH as inflammatory vs neoplastic and incomplete understanding of mechanisms of pathogenesis, clinical outcomes have improved markedly over the past decades through cooperative randomized clinical trials based on empiric therapeutic strategies. Significant advances include recognition of high- and low-risk clinical groups defined by hematopoietic and/or hepatic involvement, and of the importance of optimal intensity and of duration of chemotherapy. Nevertheless, mortality of high-risk patients, disease recurrence, lack of robustly tested salvage strategies, and significant disease morbidity of both high- and low-risk patients remain challenges. Recent discovery of recurrent somatic mutations in mitogen-activated protein kinase pathway genes at critical stages of myeloid hematopoietic differentiation in LCH patients supports redefinition of the disease as a myeloproliferative disorder and provides opportunities to develop novel approaches to diagnosis and therapy.
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Patel YT, Jacus MO, Boulos N, Dapper JD, Davis AD, Vuppala PK, Freeman BB, Mohankumar KM, Throm SL, Gilbertson RJ, Stewart CF. Preclinical examination of clofarabine in pediatric ependymoma: intratumoral concentrations insufficient to warrant further study. Cancer Chemother Pharmacol 2015; 75:897-906. [PMID: 25724157 DOI: 10.1007/s00280-015-2713-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 02/19/2015] [Indexed: 01/16/2023]
Abstract
Clofarabine, a deoxyadenosine analog, was an active anticancer drug in our in vitro high-throughput screening against mouse ependymoma neurospheres. To characterize the clofarabine disposition in mice for further preclinical efficacy studies, we evaluated the plasma and central nervous system disposition in a mouse model of ependymoma. A plasma pharmacokinetic study of clofarabine (45 mg/kg, IP) was performed in CD1 nude mice bearing ependymoma to obtain initial plasma pharmacokinetic parameters. These estimates were used to derive D-optimal plasma sampling time points for cerebral microdialysis studies. A simulation of clofarabine pharmacokinetics in mice and pediatric patients suggested that a dosage of 30 mg/kg IP in mice would give exposures comparable to that in children at a dosage of 148 mg/m(2). Cerebral microdialysis was performed to study the tumor extracellular fluid (ECF) disposition of clofarabine (30 mg/kg, IP) in the ependymoma cortical allografts. Plasma and tumor ECF concentration-time data were analyzed using a nonlinear mixed effects modeling approach. The median unbound fraction of clofarabine in mouse plasma was 0.79. The unbound tumor to plasma partition coefficient (K pt,uu: ratio of tumor to plasma AUCu,0-inf) of clofarabine was 0.12 ± 0.05. The model-predicted mean tumor ECF clofarabine concentrations were below the in vitro 1-h IC50 (407 ng/mL) for ependymoma neurospheres. Thus, our results show the clofarabine exposure reached in the tumor ECF was below that associated with an antitumor effect in our in vitro washout study. Therefore, clofarabine was de-prioritized as an agent to treat ependymoma, and further preclinical studies were not pursued.
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Affiliation(s)
- Yogesh T Patel
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
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Abstract
Pediatric acute myeloid leukemia (AML) represents 15%-20% of all pediatric acute leukemias. Survival rates have increased over the past few decades to ~70%, due to improved supportive care, optimized risk stratification and intensified chemotherapy. In most children, AML presents as a de novo entity, but in a minority, it is a secondary malignancy. The diagnostic classification of pediatric AML includes a combination of morphology, cytochemistry, immunophenotyping and molecular genetics. Outcome is mainly dependent on the initial response to treatment and molecular and cytogenetic aberrations. Treatment consists of a combination of intensive anthracycline- and cytarabine-containing chemotherapy and stem cell transplantation in selected genetic high-risk cases or slow responders. In general, ~30% of all pediatric AML patients will suffer from relapse, whereas 5%-10% of the patients will die due to disease complications or the side-effects of the treatment. Targeted therapy may enhance anti-leukemic efficacy and minimize treatment-related morbidity and mortality, but requires detailed knowledge of the genetic abnormalities and aberrant pathways involved in leukemogenesis. These efforts towards future personalized therapy in a rare disease, such as pediatric AML, require intensive international collaboration in order to enhance the survival rates of pediatric AML, while aiming to reduce long-term toxicity.
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29
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de Rooij JDE, Zwaan CM, van den Heuvel-Eibrink M. Pediatric AML: From Biology to Clinical Management. J Clin Med 2015; 4:127-49. [PMID: 26237023 PMCID: PMC4470244 DOI: 10.3390/jcm4010127] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 11/28/2014] [Indexed: 12/25/2022] Open
Abstract
Pediatric acute myeloid leukemia (AML) represents 15%–20% of all pediatric acute leukemias. Survival rates have increased over the past few decades to ~70%, due to improved supportive care, optimized risk stratification and intensified chemotherapy. In most children, AML presents as a de novo entity, but in a minority, it is a secondary malignancy. The diagnostic classification of pediatric AML includes a combination of morphology, cytochemistry, immunophenotyping and molecular genetics. Outcome is mainly dependent on the initial response to treatment and molecular and cytogenetic aberrations. Treatment consists of a combination of intensive anthracycline- and cytarabine-containing chemotherapy and stem cell transplantation in selected genetic high-risk cases or slow responders. In general, ~30% of all pediatric AML patients will suffer from relapse, whereas 5%–10% of the patients will die due to disease complications or the side-effects of the treatment. Targeted therapy may enhance anti-leukemic efficacy and minimize treatment-related morbidity and mortality, but requires detailed knowledge of the genetic abnormalities and aberrant pathways involved in leukemogenesis. These efforts towards future personalized therapy in a rare disease, such as pediatric AML, require intensive international collaboration in order to enhance the survival rates of pediatric AML, while aiming to reduce long-term toxicity.
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Affiliation(s)
- Jasmijn D E de Rooij
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, 3015CN Rotterdam, The Netherlands.
| | - C Michel Zwaan
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, 3015CN Rotterdam, The Netherlands.
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30
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Wiernik PH. Inching toward cure of acute myeloid leukemia: a summary of the progress made in the last 50 years. Med Oncol 2014; 31:136. [PMID: 25048723 DOI: 10.1007/s12032-014-0136-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 07/11/2014] [Indexed: 11/30/2022]
Abstract
Despite some claims to the contrary, I believe substantial progress has been made in the last half century toward cure of acute myeloid leukemia in children and adults. The tried and true mechanism for this progress has been clinical trial and error. This method has been supplemented with an ever-increasing amount of work at the clinical laboratory interface that is beginning to allow us to develop specific therapy for afflicted individuals. This review details where we stand today and how we got here.
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Nakayama H, Tabuchi K, Tawa A, Tsukimoto I, Tsuchida M, Morimoto A, Yabe H, Horibe K, Hanada R, Imaizumi M, Hayashi Y, Hamamoto K, Kobayashi R, Kudo K, Shimada A, Miyamura T, Moritake H, Tomizawa D, Taga T, Adachi S. Outcome of children with relapsed acute myeloid leukemia following initial therapy under the AML99 protocol. Int J Hematol 2014; 100:171-9. [PMID: 24961644 DOI: 10.1007/s12185-014-1616-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 06/10/2014] [Accepted: 06/10/2014] [Indexed: 01/08/2023]
Abstract
The outcomes of children with relapsed acute myeloid leukemia (AML) are known to be poor, but remain obscure. We retrospectively analyzed 71 patients who had relapsed following first-line treatment under the AML99 protocol. We investigated the time and site of recurrence, response to re-induction therapy, and performance of hematopoietic stem cell transplantation (HSCT) in relapsed cases, and performed a multivariate analysis to identify prognostic factors. The 5-year overall-survival (OS) rate after relapse was 37 %. Of 71 patients, three died without any anti-leukemic therapy and two underwent allogeneic HSCT. The remaining 66 patients received re-induction chemotherapy, and 33 (50 %) achieved second CR (CR2). Twenty-two of 25 (88 %) late relapse patients and 11 of 41 (27 %) early relapse patients achieved CR2 (P < 0.001). Twenty-nine CR2 cases and 35 non-CR2 cases underwent allogeneic HSCT. The 5-year OS rate was significantly higher in patients who underwent HSCT in CR2 than those in non-CR2 (66 vs. 17 %, P < 0.000001). Multivariate analysis indicated that early relapse (P < 0.05) and the positivity of the FMS-like tyrosine kinase 3--internal tandem duplication (P < 0.05) were adverse prognostic factors for survival. In conclusion, the etiology of relapsed pediatric AML needs to be elucidated and effective chemotherapy should be administered to obtain CR2.
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Affiliation(s)
- Hideki Nakayama
- Department of Pediatrics, National Hospital Organization, Fukuoka-Higashi Medical Center, Chidori 1-1-1, Koga, Fukuoka, 811-3195, Japan,
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Petri CR, O'Donnell PH, Cao H, Artz AS, Stock W, Wickrema A, Hard M, van Besien K. Clofarabine-associated acute kidney injury in patients undergoing hematopoietic stem cell transplant. Leuk Lymphoma 2014; 55:2866-73. [PMID: 24564572 DOI: 10.3109/10428194.2014.897701] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abstract We examined clofarabine pharmacokinetics and association with renal toxicity in 62 patients participating in a phase I-II study of clofarabine-melphalan-alemtuzumab conditioning for hematopoietic stem cell transplant (HSCT). Pharmacokinetic parameters, including clofarabine area under the concentration-time curve (AUC), maximum concentration and clearance, were measured, and patients were monitored for renal injury. All patients had normal pretreatment creatinine values, but over half (55%) experienced acute kidney injury (AKI) after clofarabine administration. Age was the strongest predictor of AKI, with older patients at greater risk (p = 0.002). Clofarabine AUC was higher in patients who developed AKI, and patients with the highest dose-normalized AUCs experienced the most severe grades of AKI (p = 0.01). Lower baseline renal function, even when normal, was associated with lower clofarabine clearance (p = 0.008). These data suggest that renal-adjustment of clofarabine dosing should be considered for older and at-risk patients even when renal function is ostensibly normal.
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Affiliation(s)
- Camille R Petri
- University of Chicago Pritzker School of Medicine , Chicago, IL , USA
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Schlegel P, Lang P, Zugmaier G, Ebinger M, Kreyenberg H, Witte KE, Feucht J, Pfeiffer M, Teltschik HM, Kyzirakos C, Feuchtinger T, Handgretinger R. Pediatric posttransplant relapsed/refractory B-precursor acute lymphoblastic leukemia shows durable remission by therapy with the T-cell engaging bispecific antibody blinatumomab. Haematologica 2014; 99:1212-9. [PMID: 24727818 DOI: 10.3324/haematol.2013.100073] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
We report on posttransplant relapsed pediatric patients with B-precursor acute lymphoblastic leukemia with no further standard of care therapy who were treated with the T-cell engaging CD19/CD3-bispecific single-chain antibody construct blinatumomab on a compassionate use basis. Blast load was assessed prior to, during and after blinatumomab cycle using flow cytometry to detect minimal residual disease, quantitative polymerase chain reaction for rearrangements of the immunoglobulin or T-cell receptor genes, and bcr/abl mutation detection in one patient with Philadelphia chromosome-positive acute lymphoblastic leukemia. Blinatumomab was administered as a 4-week continuous intravenous infusion at a dosage of 5 or 15 μg/m(2)/day. Nine patients received a total of 18 cycles. Four patients achieved complete remission after the first cycle of treatment; 2 patients showed a complete remission from the second cycle after previous reduction of blast load by chemotherapy. Three patients did not respond, of whom one patient proceeded to a second cycle without additional chemotherapy and again did not respond. Four patients were successfully retransplanted in molecular remission from haploidentical donors. After a median follow up of 398 days, the probability of hematologic event-free survival is 30%. Major toxicities were grade 3 seizures in one patient and grade 3 cytokine release syndrome in 2 patients. Blinatumomab can induce molecular remission in pediatric patients with posttransplant relapsed B-precursor acute lymphoblastic leukemia and facilitate subsequent allogeneic hematopoietic stem cell transplantation from haploidentical donor with subsequent long-term leukemia-free survival.
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Affiliation(s)
- Patrick Schlegel
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Peter Lang
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | | | - Martin Ebinger
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Hermann Kreyenberg
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Frankfurt, Germany
| | - Kai-Erik Witte
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Judith Feucht
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Matthias Pfeiffer
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Heiko-Manuel Teltschik
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Christina Kyzirakos
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Tobias Feuchtinger
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
| | - Rupert Handgretinger
- University Children's Hospital, Department of Pediatric Hematology and Oncology, University of Tuebingen
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Abstract
Survival rates for children with acute myeloid leukemia (AML) exceed 60 % when modern, intensified chemotherapeutic regimens and enhanced supportive care measures are employed. Despite well-recognized improvements in outcomes, primary refractory or relapsed pediatric AML yields significant morbidity and mortality, and improved understanding of this obstinate population along with refined treatment protocols are urgently needed. Although a significant number of patients with refractory or relapsed disease will achieve remission, long-term survival rates remain poor, and efforts to identify therapies which will improve OS are under continuous investigation. The current fundamental goal of such investigation is the achievement of as complete a remission as possible without dose-limiting toxicities, and the progression to hematopoietic stem cell transplantation thereafter. In this review the scope of the problem of relapsed and refractory AML as well as current and emerging chemotherapy options will be discussed.
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Lang P, Teltschik HM, Feuchtinger T, Müller I, Pfeiffer M, Schumm M, Ebinger M, Schwarze CP, Gruhn B, Schrauder A, Albert MH, Greil J, Urban C, Handgretinger R. Transplantation of CD3/CD19 depleted allografts from haploidentical family donors in paediatric leukaemia. Br J Haematol 2014; 165:688-98. [PMID: 24588540 DOI: 10.1111/bjh.12810] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 01/22/2014] [Indexed: 11/28/2022]
Abstract
Transplantation of T- and B-cell depleted allografts from haploidentical family donors was evaluated within a prospective phase II trial in children with acute lymphoblastic leukaemia, acute myeloid leukaemia and advanced myelodysplastic syndrome (n = 46). 20 patients had active disease; 19 patients received a second or third stem cell transplantation (SCT). Toxicity-reduced conditioning regimens consisted of fludarabine or clofarabine (in active disease only), thiotepa, melphalan and serotherapy. Graft manipulation was carried out with immunomagnetic microbeads. Primary engraftment occurred in 88%, with a median time to reach >1·0 × 10⁹/l leucocytes, >20 × 10⁹/l platelets and >0·1 × 10⁹/l T-cells of 10, 11 and 50 days, respectively. After retransplantation, engraftment occurred in 100%. Acute graft-versus-host disease (GvHD) grade II and III-IV occurred in 20% and 7%, chronic GvHD occurred in 21%. Both conditioning regimens had comparable toxicity. Transplant-related mortality (TRM) was 8% at one year and 20% at 5 years. Event-free survival at 3 years was: 25% (whole group), 46% (first, second or third complete remission [CR], first SCT) vs. 8% (active disease, first SCT) and 20% (second or third SCT, any disease status). This approach allows first or subsequent haploidentical SCTs to be performed with low TRM. Patients in CR may benefit from SCT, whereas the results in patients with active disease were poor.
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Affiliation(s)
- Peter Lang
- Children's University Hospital, University of Tuebingen, Tuebingen, Germany
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Shukla N, Kobos R, Renaud T, Steinherz LJ, Steinherz PG. Phase II trial of clofarabine with topotecan, vinorelbine, and thiotepa in pediatric patients with relapsed or refractory acute leukemia. Pediatr Blood Cancer 2014; 61:431-5. [PMID: 24115731 DOI: 10.1002/pbc.24789] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 08/29/2013] [Indexed: 01/22/2023]
Abstract
BACKGROUND Outcomes for children with relapsed/refractory (R/R) acute lymphoblastic leukemia (ALL) and acute myelogenous leukemia (AML) are dismal. In an effort to improve outcomes, we performed a phase I/II study of a novel clofarabine based combination regimen called TVTC. Herein, we report the response rates of patients in the phase II portion of the study. PROCEDURE Seventeen patients with R/R ALL, AML, or biphenotypic leukemia were enrolled. Sixteen patients were evaluable for response. Patients were treated at the maximum tolerated dose (MTD) from the phase I portion of the study (clofarabine 40 mg/m(2) /day IV × 5 days, topotecan 1 mg/m(2) /day IV continuous infusion × 5 days, vinorelbine 20 mg/m(2) /week IV × 3 weeks, thiotepa 15 mg/m(2)/day IV × 1 day). The primary endpoint was overall response rate (ORR), defined as CR or CR without platelet recovery (CRp). RESULTS The ORR was 69% (10 CR, 1 CRp). Among the 11 responders, 9 (82%) proceeded to hematopoietic stem cell transplantation. The most common grade 3+ non-hematologic toxicities were febrile neutropenia (82%) and transient transaminase elevation (47%). CONCLUSIONS TVTC demonstrates significant activity in patients with R/R acute leukemia. The activity in R/R AML patients was very encouraging, with 8 of 12 (67%) patients achieving a CR/CRp. Patients with high risk de novo AML may benefit from incorporation of TVTC therapy into frontline treatment regimens. This regimen warrants further exploration in a larger cohort of patients with R/R leukemia.
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Affiliation(s)
- Neerav Shukla
- Department of Pediatrics, Memorial Sloan-Kettering Cancer Center, New York, New York
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Song G, Valdez BC, Li Y, Dominguez JR, Corn P, Champlin RE, Andersson BS. The histone deacetylase inhibitor SAHA sensitizes acute myeloid leukemia cells to a combination of nucleoside analogs and the DNA-alkylating agent busulfan. Leuk Lymphoma 2014; 55:1625-34. [PMID: 24144307 DOI: 10.3109/10428194.2013.856007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Fludarabine (Flu), clofarabine (Clo) and busulfan (Bu) are used in allogeneic hematopoietic stem cell transplant (allo-HSCT). We reported that combining [Flu + Clo + Bu] had a synergistic cytotoxicity in AML cells. We hypothesized that combining [Flu + Clo + Bu] with the histone deacetylase inhibitor SAHA will further enhance cytotoxicity. We exposed the acute myeloid leukemia (AML) cell lines KBM3/Bu250(6) and OCI-AML3 to Flu, Clo, Bu and SAHA alone and in various combinations. [Flu + Clo + Bu + SAHA] resulted in synergistic cytotoxicity, which can be attributed to (1) activated DNA-damage response and cell cycle checkpoint activation through the ATM-CHK2-P53 (or P73) pathway or ATM-CHK2-cdc25-cdc2 pathway, (2) histone modifications and (3) activated apoptosis pathway. The [Flu + Clo + Bu + SAHA] combination causes mitochondrial outer membrane permeabilization, leakage of cytochrome c and Smac/Diablo into the cytosol with caspase activation, and release of apoptosis-inducing factor (AIF) into the nucleus resulting in nuclear fragmentation and cell death. These results provide a mechanistic basis for using SAHA in future clinical trials with double nucleoside analog-busulfan combinations in pretransplant conditioning therapy.
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Affiliation(s)
- Guiyun Song
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas M. D. Anderson Cancer Center , Houston, TX , USA
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August KJ, Narendran A, Neville KA. Pediatric relapsed or refractory leukemia: new pharmacotherapeutic developments and future directions. Drugs 2014; 73:439-61. [PMID: 23568274 DOI: 10.1007/s40265-013-0026-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Over the past 50 years, numerous advances in treatment have produced dramatic increases in the cure rates of pediatric leukemias. Despite this progress, the majority of children with relapsed leukemia are not expected to survive. With current chemotherapy regimens, approximately 15 % of children with acute lymphoblastic leukemia and 45 % of children with acute myeloid leukemia will have refractory disease or experience a relapse. Advances in the treatment of pediatric relapsed leukemia have not mirrored the successes of upfront therapy, and newer treatments are desperately needed in order to improve survival in these challenging patients. Recent improvements in our knowledge of cancer biology have revealed an extensive number of targets that have the potential to be exploited for anticancer therapy. These advances have led to the development of a number of new treatments that are now being explored in children with relapsed or refractory leukemia. Novel agents seek to exploit the same molecular aberrations that contribute to leukemia development and resistance to therapy. Newer classes of drugs, including monoclonal antibodies, tyrosine kinase inhibitors and epigenetic modifiers are transforming the treatment of patients who are not cured with conventional therapies. As the side effects of many new agents are distinct from those seen with conventional chemotherapy, these treatments are often explored in combination with each other or combined with conventional treatment regimens. This review discusses the biological rationale for the most promising new agents and the results of recent studies conducted in pediatric patients with relapsed leukemia.
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Affiliation(s)
- Keith J August
- Children's Mercy Hospitals and Clinics, 2401 Gillham Road, Kansas City, MO, USA.
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Escherich G, Zur Stadt U, Zimmermann M, Horstmann MA. Clofarabine in combination with pegylated asparaginase in the frontline treatment of childhood acute lymphoblastic leukaemia: a feasibility report from the CoALL 08-09 trial. Br J Haematol 2013; 163:240-7. [PMID: 23937310 DOI: 10.1111/bjh.12520] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 06/21/2013] [Indexed: 01/09/2023]
Abstract
Clofarabine was the latest new drug to be approved, in 2004, for relapsed or refractory acute lymphoblastic leukaemia (ALL). To investigate its value in the frontline treatment of ALL we applied clofarabine 5 × 40 mg/m(2) in combination with pegylated asparaginase (PEG-ASP) 1 × 2500 iu/m(2) in high risk ALL patients as a novel post-induction element in the German Co-operative Study Group for treatment of ALL (CoALL) trial 08-09. Newly diagnosed ALL patients, defined by a significant minimal residual disease (MRD) load at the end of induction (B-progenitor ALL at day 29 ≥ 10(-4) and T-ALL at day 43 ≥ 10(-3) ) were eligible for this phase II trial. All other patients received the standard treatment consisting of high-dose cytarabine (HIDAC) 4 × 3 g/m² in combination with Peg-ASP 2500 iu/m². Forty-two patients (39 B-progenitor; 3 T-ALL) fulfilled the criteria, were stratified and received the clofarabine/PEG-ASP treatment resulting in 24/39 (61%) MRD-negative B-progenitor patients compared to 18/39 (46%) after HIDAC/PEG-ASP in CoALL 07-03. Overall, the toxicity profile of clofarabine/PEG-ASP was similar to HIDAC/PEG-ASP without unexpected severe side effects. Clofarabine combined with PEG-ASP is safe and effective in the frontline treatment of ALL. A prospective, randomized trial is warranted to evaluate the antileukaemic efficacy of clofarabine versus HIDAC combined with PEG-ASP.
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Affiliation(s)
- Gabriele Escherich
- Clinic of Paediatric Haematology and Oncology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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Long J, Liu S, Li K, Zhou X, Zhang P, Zou L. High proportion of CD34+/CD38-cells is positively correlated with poor prognosis in newly diagnosed childhood acute lymphoblastic leukemia. Leuk Lymphoma 2013; 55:611-7. [PMID: 23706103 DOI: 10.3109/10428194.2013.807924] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The CD34+/CD38- immunophenotype is used to identify candidate hematopoietic stem cells (HSCs) and leukemia-initiating cells (LICs). However, the clinical significance of the CD34+/CD38-proportion in childhood acute lymphoblastic leukemia (ALL) is not well established. Here, we found that a high proportion of CD34+/CD38- cells from 112 patients with childhood ALL was negatively correlated with the outcome. Also the percentage of CD34+/CD38- cells was associated with clinical and biological features of patients with ALL. Further, a high proportion of CD34+/CD38- cells in childhood ALL was positively correlated with advanced risk subgroups, which could predict risk stratification by receiver operating characteristic (ROC) curve analysis. In addition, a larger tumor burden and lower survival rate were observed in mice injected with CD34+/CD38- cells, but not in mice injected with other fractions. Our data reveal that a high proportion of CD34+/CD38- cells is positively associated with a poor prognosis of childhood ALL, to further guide therapy of the disease.
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Affiliation(s)
- Juan Long
- Center for Clinical Molecular Medicine
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Moore AS, Kearns PR, Knapper S, Pearson ADJ, Zwaan CM. Novel therapies for children with acute myeloid leukaemia. Leukemia 2013; 27:1451-60. [PMID: 23563239 DOI: 10.1038/leu.2013.106] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 03/24/2013] [Accepted: 04/04/2013] [Indexed: 12/22/2022]
Abstract
Significant improvements in survival for children with acute myeloid leukaemia (AML) have been made over the past three decades, with overall survival rates now approximately 60-70%. However, these gains can be largely attributed to more intensive use of conventional cytotoxics made possible by advances in supportive care, and although over 90% of children achieve remission with frontline therapy, approximately one third in current protocols relapse. Furthermore, late effects of therapy cause significant morbidity for many survivors. Novel therapies are therefore desperately needed. Early-phase paediatric trials of several new agents such as clofarabine, sorafenib and gemtuzumab ozogamicin have shown encouraging results in recent years. Due to the relatively low incidence of AML in childhood, the success of paediatric early-phase clinical trials is largely dependent upon collaborative clinical trial design by international cooperative study groups. Successfully incorporating novel therapies into frontline therapy remains a challenge, but the potential for significant improvement in the duration and quality of survival for children with AML is high.
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Affiliation(s)
- A S Moore
- Queensland Children's Medical Research Institute, The University of Queensland, Brisbane, Australia.
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Robak P, Robak T. Older and new purine nucleoside analogs for patients with acute leukemias. Cancer Treat Rev 2013; 39:851-61. [PMID: 23566572 DOI: 10.1016/j.ctrv.2013.03.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/05/2013] [Accepted: 03/14/2013] [Indexed: 02/05/2023]
Abstract
Purine nucleoside analogs (PNAs) compose a class of cytotoxic drugs that have played an important role in the treatment of hematological neoplasms, especially lymphoid and myeloid malignancies. All PNA drugs have a chemical structure similar to adenosine or guanosine, and they have similar mechanisms of action. They have many intracellular targets: they act as antimetabolites, competing with natural nucleosides during DNA or RNA synthesis, and as inhibitors of key cell enzymes. In contrast to other antineoplastic drugs, PNAs act cytotoxically, both in the mitotic and quiescent cell cycle phases. In the last few years, three PNAs have been approved for the treatment of lymphoid malignancies and other hematological disorders: 2-chlorodeoxyadenosine (2-CdA), fludarabine and pentostatin. 2-CdA and fludarabine are also active in the treatment of acute myeloid leukemia (AML). These drugs, in combination with cytarabine and other agents, are commonly used as salvage regimens in relapsed or refractory AML. Moreover, the addition of 2-CdA to the standard induction regimen is associated with an increased rate of complete remission and improved survival of adult patients with AML. More recently three novel PNAs have been synthesized and introduced into clinical trials: clofarabine, nelarabine and forodesine. Clofarabine is the most promising PNA in current clinical trials in pediatric and adult patients with acute leukemias. Nelarabine is more cytotoxic in T-lineage than in B-lineage leukemias. Clofarabine and nelarabine have been approved for the treatment of refractory patients with acute lymphoblastic leukemia (ALL) and lymphoblastic lymphoma. Clofarabine is also an active drug in AML treatment when administered either alone or in combination regimens as front-line treatment and in relapsed or refractory patients. Unlike other PNA, forodesine is not incorporated into DNA but displays a highly selective purine nucleoside phosphorylase inhibitory action. Forodesine is undergoing clinical trials for the treatment of T-cell malignancies, including T-cell ALL. This article summarizes recent achievements in the mechanism of action, pharmacological properties and clinical activity and toxicity of PNAs, as well as their emerging role in lymphoid and myeloid acute leukemias.
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Affiliation(s)
- Pawel Robak
- Department of Experimental Hematology, Medical University of Lodz, Copernicus Memorial Hospital, 93-510 Lodz, ul. Ciołkowskiego 2, Poland ul. Ciołkowskiego 2, Poland
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Abd Elmoneim A, Gore L, Ricklis RM, Boklan J, Cooper T, Narendran A, Rolla K, Scott T, Arceci RJ. Phase I dose-escalation trial of clofarabine followed by escalating doses of fractionated cyclophosphamide in children with relapsed or refractory acute leukemias. Pediatr Blood Cancer 2012; 59:1252-8. [PMID: 22887831 DOI: 10.1002/pbc.24264] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Accepted: 06/27/2012] [Indexed: 11/07/2022]
Abstract
BACKGROUND By inhibiting DNA repair, clofarabine (CLO) may augment cyclophosphamide (CY)-induced DNA damage and apoptosis. We performed a Phase I study for refractory and/or relapsed (R/R) leukemia in children to determine maximum-tolerated dose (MTD) of time-sequential CLO followed by CY. PROCEDURE Thirteen patients with (R/R) ALL (n = 8) and AML (N = 5), median age 9 years (range: 2-12 years), were treated with escalating doses of CLO on days 1, 2, 3 and 8, 9, 10 and CY 200 mg/m(2) /day on days 0 and 1 then 400 mg/m(2) /day on days 2, 3, 8, 9, and 10. Ten patients were treated at dose level 1 (DL1) (CLO 20 mg/m(2) /day) and three patients at DL2 (CLO 30 mg/m(2) /day). The average number of prior chemotherapies was 8.9. DNA damage testing was performed before treatment on day 0, and 2 hours after CY on day 0, before sequential CLO, CY treatment on day 1, and 2 hours after CLO followed by CY on day 1. RESULTS Two patients at DL2 had dose-limiting toxicities (DLTs) that included hypotension with cardio-respiratory failure (1) and hepato-renal failure (1). Complete remission (CR) was achieved in 2/11 (18.2%) and partial remission (PR) in 2/11 (18.2%) for an overall response (OR) of 36.4%. The use of CLO before CY augmented CY-induced DNA damage in leukemic blasts compared to CY alone. CONCLUSION In pediatric patients with R/R leukemia, 20 mg/m(2) /day is the MTD for CLO in timed sequential combination with CY. Increased DNA damage with the use of this combination suggests a mechanism for the sequential timing of these two chemotherapeutic agents.
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Affiliation(s)
- Abeer Abd Elmoneim
- Kimmel Comprehensive Cancer Center at Johns Hopkins, The Bunting & Blaustein Cancer Research Building, Baltimore, MD 21231, USA
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Abstract
Although acute myeloid leukaemia (AML) has long been recognized for its morphological and cytogenetic heterogeneity, recent high-resolution genomic profiling has demonstrated a complexity even greater than previously imagined. This complexity can be seen in the number and diversity of genetic alterations, epigenetic modifications, and characteristics of the leukaemic stem cells. The broad range of abnormalities across different AML subtypes suggests that improvements in clinical outcome will require the development of targeted therapies for each subtype of disease and the design of novel clinical trials to test these strategies. It is highly unlikely that further gains in long-term survival rates will be possible by mere intensification of conventional chemotherapy. In this review, we summarize recent studies that provide new insight into the genetics and biology of AML, discuss risk stratification and therapy for this disease, and profile some of the therapeutic agents currently under investigation.
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Affiliation(s)
- Jeffrey E Rubnitz
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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Diagnosis and management of acute myeloid leukemia in children and adolescents: recommendations from an international expert panel. Blood 2012; 120:3187-205. [PMID: 22879540 DOI: 10.1182/blood-2012-03-362608] [Citation(s) in RCA: 363] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Despite major improvements in outcome over the past decades, acute myeloid leukemia (AML) remains a life-threatening malignancy in children, with current survival rates of ∼70%. State-of-the-art recommendations in adult AML have recently been published in this journal by Döhner et al. The primary goal of an international expert panel of the International BFM Study Group AML Committee was to set standards for the management, diagnosis, response assessment, and treatment in childhood AML. This paper aims to discuss differences between childhood and adult AML, and to highlight recommendations that are specific to children. The particular relevance of new diagnostic and prognostic molecular markers in pediatric AML is presented. The general management of pediatric AML, the management of specific pediatric AML cohorts (such as infants) or subtypes of the disease occurring in children (such as Down syndrome related AML), as well as new therapeutic approaches, and the role of supportive care are discussed.
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Abstract
Pediatric acute myeloid leukemia (AML) is currently associated with survival rates as high as 70%. However, many events still occur, side effects are significant, and late effects occur and can even be life-threatening. Thus, the treatment of pediatric AML still needs further improvement. While most study groups agree on several principles of AML treatment, many unanswered questions and even controversies remain, which will be the topic of this review. Relapsed AML, the most frequent event in children, will also be discussed. The controversies justify future clinical studies. Fortunately, biotechnical developments provide novel treatment targets and targeted drugs, and will enable minimal residual disease-driven tailored therapy. Moreover, a wide range of new drugs is being developed. International collaboration is required to perform randomized, or even single-arm clinical studies, in this setting of subgroup-directed therapy, and fortunately is being accomplished. Therefore, optimism is justified and the treatment of pediatric AML will continue to improve.
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Affiliation(s)
- Gertjan J L Kaspers
- Department of Pediatric Oncology/Hematology of the VU University Medical Center, De Boelelaan 1117, NL-1081, HV Amsterdam, The Netherlands.
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Miano M, Pistorio A, Putti MC, Dufour C, Messina C, Barisone E, Ziino O, Parasole R, Luciani M, Lo Nigro L, De Rossi G, Varotto S, Bertorello N, Petruzziello F, Calvillo M, Micalizzi C. Clofarabine, cyclophosphamide and etoposide for the treatment of relapsed or resistant acute leukemia in pediatric patients. Leuk Lymphoma 2012; 53:1693-8. [PMID: 22303898 DOI: 10.3109/10428194.2012.663915] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Clofarabine is a promising new chemotherapeutic agent that is active in the treatment of pediatric acute leukemia. Forty children (16 with acute myeloid leukemia [AML], 24 with acute lymphoblastic leukemia [ALL]), aged 1-20 years (median 7.6 years) with relapsed or refractory ALL or AML were treated because of resistance to first-line treatment (n =5), or for first (n =22), second (n =11) or third relapse (n =2). They received clofarabine (40 mg/m(2)/day) associated with etoposide (100 mg/m(2)/day) and cyclophosphamide (440 mg/m(2)/day) administered as one or two induction cycles (5 days of chemotherapy) in an attempt to reach complete remission (CR) or CR without platelet recovery (CRp). This was followed by 1-3 consolidation cycles (4 days of chemotherapy) for a maximum of four cycles. Seven (44%) out of 16 and 10 (42%) out of 24 evaluable children with AML and ALL, respectively, responded to treatment. The most common adverse events were infections and gastrointestinal and hepatic toxicity. Thirteen (76%) out of 17 responders underwent hematopoietic stem cell transplant. The 24-month overall survival was 25%, while it was 59% among patients who responded to the first induction cycle. Our study suggests that this drug regimen is well tolerated and can be effective in heavily pretreated pediatric patients with relapsed or refractory acute leukemia.
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Affiliation(s)
- Maurizio Miano
- Hematology/Oncology Unit, G. Gaslini Children' s Hospital, Genoa, Italy
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Chaleff S, Hurwitz CA, Chang M, Dahl G, Alonzo TA, Weinstein H. Phase II study of 2-chlorodeoxyadenosine plus idarubicin for children with acute myeloid leukaemia in first relapse: a paediatric oncology group study. Br J Haematol 2012; 156:649-55. [PMID: 22512017 DOI: 10.1111/j.1365-2141.2011.08976.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Relapse remains the leading cause of death in patients with acute myeloid leukaemia (AML). Relatively few new chemotherapy agents have been proven to be effective in this population. We report on a Phase 2 clinical trial using the novel combination of 2-chlorodeoxyadenosine (2-CDA) (8 mg/m² per d x 5 d) plus idarubicin (Ida) (10 mg/m² per d x 3 d). The study involved 109 paediatric patients with AML at first relapse, of whom 104 were available for analysis. The overall response rate was 51% (complete response [CR] + partial response) with a CR rate of 46%. 2-year event-free survival (EFS) and overall survival (OS) were 20% and 26%. The only significant variable in determining response, EFS and OS was duration of initial remission, with patients who had an initial remission >1 year having much worse outcomes overall (response rate 74% vs. 25%, EFS 8% vs. 37% and OS of 16% vs. 39%, P < 0.01 for all). There was an acceptable toxicity profile with one neurological event and no cardiac events observed. The most common grade 3-4 toxicities observed were neutropenia (59%) and thrombocytopenia (68%). This study demonstrated that the novel combination of 2-CDA/Ida was effective and should be considered for incorporation in front line therapy for children with AML.
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Bacher U, Talano JA, Bishop MR. Monitoring and Prevention of Relapse after Allogeneic Hematopoietic Cell Transplantation for Myeloid Malignancies. Biol Blood Marrow Transplant 2012; 18:S62-73. [DOI: 10.1016/j.bbmt.2011.10.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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